If you think it might be from a He111, get an image of a cockpit and compare the various panel areas to the artifact you have.

From what I've seen, the instruments in the cockpit of the He111 didn't have a panel shaped like what you have shown in the photo. There were instruments ahead (or above, depending on type) of the pilot, a panel to the left of the pilot and a small panel foreward and to the right of the pilot, in the bombardier's position.

There is a possibility it might be from a Ju88 cockpit, on the main panel, far right.